The steel screws included in the set have oval, flat and pin heads. Stainless steel screws won't rust or corrode.
30 Piece M6 x 1.0mm Thread Repair Insert Kit, Stainless Steel Thread Repair Kit
11Pcs M16x1.5 Thread Repair Kit Stainless Steel Drill Helicoil Repair Kit
11Pcs M16x1.5 Thread Repair Kit Stainless Steel Drill Helicoil Kit...
Heavy Duty Truck Alignment Turn Plate Table Repair Kit Stainless Steel Hardware